Accessing the GPIO ports on the EHS6T [Solved] | Thales IoT Developer Community

Thanks Jure! It works fine now.
Looks like the ports need to be configured through I2C first before the pins can be initialised. Its a bit of a shame how I can't swap pin directions on the fly without the need to restart the module, unless there is another method.

I'll write what I typed in, incase someone has a similar problem:

To configure GPIO6, GPIO7 as Inputs
GPIO8 and GPIO11 as output.

AT^SSPI=                    //Enter I2C ****

<aD41000>                 //GPIO6 as Input

<aD41100>                 //GPIO7 as Input

<aD41201>                 //GPIO8 as output

<aD41301>                 //GPIO11 as output

#                                  //Exit I2C ****

AT+CFUN=1,1            //Reset Module

AT^SCPIN=1,5,0        //GPIO6 as Input

AT^SCPIN=1,6,0        //GPIO7 as Input

AT^SCPIN=1,7,1,1     //GPIO8 as Output

AT^SCPIN=1,10,1,1   //GPIO11 as Output                 

The I2C commands are split into three sections

Prefix    Address    Direction
<aD4         13               01>

Address: The GPIO pin to be configured. Values are in Table 29 in I2C Commands in the Hardware Interface Description pdf.

Direction: 00 for input, 01 for output.